Skiving-machine.



No. 632.984. Patented Sept. I2, I899.

\ C. H. BAYLEY.

SKIVING MACHINE.

(Application led Dec. 27, 1898.)

III *d MLES: A LEVIIJDF:

N0. 632,984. Patented'Sept. l2, |899'. c. H. BAYLEY. SKIVING MACHINE.

(Application led Dec. 27, 1898.) ('No Model.) 2 Sheets-Sheet 2 NrTnD STATES PATENT einen.

CHARLES BAYLEY, OF BOSTON, MASSACHUSETTS.

SKIVING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 632,984, dated September 12, 1899.

Application filed December 27,1898. Serial No. 700,313. (No model.)

To @ZZ wtowt it may concern:

Be it known that I, CHARLES H. BAYLEY, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Skiving Machines, of which the following is a description sufficiently full, clear, and exact to enable those skilled in the art to which it appertains or with which it is most nearly connected to make and use the same.

My invention has relation to skiving-machines, and particularly to that class of skiving-machines of which the machine disclosed in an application filed by me August 16, 1898, bearing Serial No. 688,701, is a type, and is intended to so improve the construction of that class of machines as to permit the use of a bearing-sleeve for the knife-shaft and yet avoid all objections that have heretofore been urged by practical operators against the use of a bearing-sleeve.

To these ends my invention consists of certain features of construction by which is secured a quick and absolutely accurate adj ustment of the knife relative to the feed-roll, simple and perfect provision being made throughout for compensating for wear of engaging parts and by which also the quick and easy removal of the sleeve containing the knife-shaft is permitted without in the least interfering with the adjusting device and the sleeve or without interfering with the adjustment or relationship of the sleeve with respect to the knife-shaft or without in'any other way disconnecting or dismantling the parts of the machine.

In the accompanying drawings I have illustrated one of the modes in which I have contemplated embodying my aforesaid improvements.

Figure 1 is a front elevation of a skivingmachine, the feed-disk being removed to more clearly show the parts affected by my invention. Fig. 2 is a detail end elevation showingthe grinder and the knife in proper relationship to each other and illustrating clearly the means for adjusting the sleeve and compensating for wear. Fig. 3 is a detail view in vertical section illustrating the adjustable engagement between the sleeve and the knifeshaft. Fig. l is a plan view, partly in section, of the sleeve, knife-shaft, and adjusting device. Fig. 5 is a sectional plan view on line :c :n of Fig. 2. Fig. 6 is a plan view of that portion of the bracket that supports the bearing-sleeve.

I will now give a detailed description of the form of my invention illustrated in the drawings; but since some of the features disclosed are made the subject of the application above referred to I shall refer to them only so far as may be necessary and proper to give an accurate understanding of the invention herein claimed.

a designates the main driving-shaft, from which motion is communicated to the feedroll b, to the knife-shaft c, and to the grinder (Z in any suitable manner, as will be understood by those skilled in the art.

The knife-shaft c is mounted in a supporting or bearing sleeve c. Said bearing-sleeve is mounted. in a movable bracket f, which mayhave such adjustments as may be proper and suitable to secure the proper relationship between the knife and the feed-roll. Upon this bracket f I have shown, as in my former application, an additional bracket f', secured thereto and supporting the grinder d, so that the grinder cl and the knife may be simultaneously inclined or tipped by means of the adj usting-screw f2, as pointed out in my former application and as will be readily understood by those skilled in the art. By means of the straps or clamping members g, which are tightened to place by means of the screws 7L, the sleeve e is held in said bracketin such a way as to permit it to slide longitudinally in said bracket while making it possible to quickly and easily remove said sleeve by withdrawing said screws. I form intermediate of the ends of said sleeve, so as not to interfere with the vertical adjustment, a lug or shoulder t, which is recessed to permit the insertion of a collar j, which is adjustably secured to the shaft c by means of a set-screw or the like. The lower end of the knife-shaft is formed with a hub l, which abuts against the lower end of the sleeve and which by bearing against the lower end of said sleeve prevents the upward movement of the shaft in the sleeve. The collar j, secured to the shaft, engages with the interior face of the recessed lug or shoulder, so as to prevent longitudinal movement of the shaft in the IOO sleeve. It is obvious that as t'ast as these bearing-surfaces become worn the set-screw holding the collar may be loosened to permit the knife-shaft. to be thrust upward until it bears lirmly against the lower end of the sleeve and that while the knife-shaft is held in that position the adjustable collar can be pressed firmly to its seat and again secured to the shaft while held in that position, thus securing perfect freedom from longitudinal play by simply loosening or tightening a single set-screw. The lng or shoulder@ is eX- tended some little distance to the rear of the sleeve and is slotted in order to form a pair otjaws L", which are adjustable toward or away from each other by means of a screw fL'2,the purpose of which will presentlybe described. An adjusting-screw m is mounted in the bracket j' to the rear of the sleeve and is provided with a collar or shoulder m. This collar forms an open engagement with the recess between the jaws i. It is obvious that as the collar m and the opposite bearing-faces of the jaws t" become worn the screw i2 maybe tightened, thus drawing two jaws together and compensatingT for the wear of the engaging parts. I also provide suitable means, such as a binding-screw n, for clamping the adjusting-screw m against accidental movement, which may be caused by the constant jarring of the machinerv It will thus be seen that the parts of the mechanism under consideration are so constructed as to absolutely prevent backlash at every point as fast as the parts become worn. Not only is the engagement between the sleeve-adjusting device and the sleeve adjustable to compensate for wear, but is so constructed as not to interfere in the least with the instantaneous withdrawal of the sleeve from its supporting-bracket, so that by the mere removal of the screws 7L the sleeve and knife-shaft may be withdrawn without making it necessary to loosen other connections or in any way to dismantle the machine.

lt will be obvious to the skilled artisan that by my invention I have completely overcome the objections that have heretofore been made to the use of a bearing-sleeve for the rotary knife-shaft, as I secure absolute freedom from backlash or play of the parts and also secure a construction which permits the prompt and easy removal of the sleeve without interfering with the adjusting mechanism or in any other way dismantling the machine.

Having thus explained the nature of the invention' and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made or all of the modes of its use, it is declared that what is claimed isl. In a skiving-machine, the combination with a rotary knife-shaft,of a sleeve surrounding and supporting said shaft, .a movable bracket, means for detachably holding said sleeve in said movable bracket, whereby the sleeve may be quickly and easily withdrawn to permit the removal of the knife without disturbing the relationship of the sleeve to the shaft.

i?. In a skiving-machine, the combination of a rotary knife-shaft, a longitudinally-adjustable supporting-sleeve surrounding said shaft,an adjusting device having engagement with said sleeve, said engagement being itself adjustable to compensate for wear, whereby any longitudinal play of the sleeve is pre vented.

3. In a skiving-machine, the combination of a rotary knife-shaft, a supporting-sleeve surrounding the same, said sleeve being recessed intermediate of its en'ds to receive a' collar, said collar being adjustably secured to said shaft, so as to permit free rotation of the collar and the shaft, while preventing longitudinal play in the sleeve.

e. In a skiving-machine, the combination of a rotary knife-shaft, a bearing-sleeve surrounding the same, a lug or shoulder formed on said sleeve intermediate of its ends, said shoulder being recessed to receive an adjustable collar secured to the shaft, and an adjusting device having engagement with the lug or shoulder to secure longitudinal adjustment of the sleeve and knife-shaft.

5. In a skiving-machine, the combination of a rotary knife-shaft, a bearing-sleeve, surrounding the same, said bearing-sleeve being detachably mounted in a movable bracket, a lug projecting from said sleeve and an adjusting device arranged to engage with said lug 'without interfering with the removal of the a close engagement with the collar, substantially as described.

8. In a skiving-machine, the combination of a rotary knife-shaft, a bearing-sleeve therefor, said bearing-sleeve being mounted to slide longitudinally in a supporting-bracket, an adjusting device for controlling said sliding movement, and means for positively fastening the device against accidental movement while the machine is in operation. j

9. In a skiving-machine, the combination of an adjustable bracket, means for securing a positive and accurate adjustment thereof, a rotary knife-shaft and a coperating grinder carried by said bracket, said knife-shaft being surrounded and supported by a sliding detachable sleeve, substantially as described.

ICO

IIO

l0. In a skiving-muehine, the combination In testimony whereof have signed my ro of arotaryknife-shaft, abearing-sleeve ther'ename to this specification, in the presence 0f for, said bearing-sleeve being mounted to two subscribing Witnesses, this 21st day of slide longitudinally in a supporting-bracket, December, A. D. 1898.

5 in adjusting device for controllin0r said slicli K i 7 ing` movemeont, the en gugement between said CHARLES H' BAE LEY' adjusting device and said sleeve being de- Witnesses: tziclmble to permit the quick and easy ie- GEO. N. GODDARD,

movul of the knife-shaft with its sleeve. ARTHUR W. CROSSLEY. 

